Nuwuhe mwenda mwiza wo gushungura umukungugu?

Iyo ushakisha imyenda myiza yo kuyungurura ivumbi, ibikoresho bibiri byitabiriwe cyane kubikorwa byihariye: PTFE (Polytetrafluoroethylene) nuburyo bwagutse, ePTFE (Yaguwe Polytetrafluoroethylene). Ibi bikoresho byubukorikori, bizwiho imiterere yihariye ya chimique nu mubiri, byasobanuye neza iyungurura umukungugu mubidukikije bisaba, bitanga ibyiza bibatandukanya nimyenda gakondo nka pamba, polyester, cyangwa nibikoresho bisanzwe bya HEPA.

PTFE, bakunze kwita izina ryayo rya Teflon, ni fluoropolymer yizihizwa kubera imiterere idafite inkoni, kurwanya imiti, no kwihanganira ubushyuhe bwinshi. Mu miterere yacyo mbisi, PTFE ni ibintu byuzuye, bikomeye, ariko iyo bikozwe mu mwenda wo kuyungurura, ikora ubuso bworoshye, bushyamiranye buke bwirukana umukungugu, amazi, nibihumanya. Iyi miterere idafatika ningirakamaro mu kuyungurura ivumbi: bitandukanye nigitambara cyoroshye gifata uduce duto cyane mumibiri yazo (biganisha ku gufunga),Akayunguruzoemerera umukungugu kwirundanya hejuru, byoroshye guhanagura cyangwa kunyeganyega. Ubu buryo "bwo gupakira hejuru" butuma umwuka uhoraho mugihe, inyungu nyamukuru mumiterere yumukungugu mwinshi nkibibanza byubaka cyangwa inganda zikora.

ePTFE, yaremewe no kurambura PTFE kugirango ireme imiterere, ifata iyungurura imikorere kurwego rukurikira. Uburyo bwo kwaguka butanga urusobe rwa mikorosikopi ntoya (mubisanzwe hagati ya 0.1 na 10 microne) mugihe ukomeza ibintu bya PTFE. Utwo dusimba dukora nk'icyuma gisobanutse neza: kibuza umukungugu-harimo ibintu byiza (PM2.5) ndetse na sub-micron-mu gihe byemerera umwuka kunyura nta nkomyi. Ububasha bwa ePTFE burashobora guhindurwa cyane, bigatuma bukoreshwa mubisabwa kuva kumasuka yo mu kirere atuyemo (gushungura amatungo y’inyamanswa hamwe n’intanga) kugeza mu bwiherero bw’inganda (gufata ibicuruzwa biva mu mahanga).

Imwe mu nyungu zigaragara za PTFE na ePTFE ni ukuramba kwabo no kurwanya ibihe bibi. Bitandukanye na pamba cyangwa polyester, ishobora kwangirika mugihe ihuye nimiti, ubushuhe, cyangwa ubushyuhe bwinshi, PTFE na ePTFE byinjizwa mubintu byinshi, harimo acide na solde. Barashobora kwihanganira ubushyuhe buri hagati ya -200 ° C na 260 ° C (-328 ° F kugeza kuri 500 ° F), bigatuma biba byiza gukoreshwa mumatanura, sisitemu yo gusohora, cyangwa ahantu hanze aho filteri ihura nikirere gikabije. Uku kwihangana bisobanura igihe kirekire - PTFE na ePTFE muyunguruzi irashobora kumara amezi cyangwa imyaka myinshi hamwe no kuyitaho neza, ikarenza ubundi buryo bwakoreshwa nkimpapuro cyangwa shingiro ryibanze.

Iyindi nyungu nibisabwa bike byo kubungabunga. Bitewe nubuso bwa PTFE butari inkoni, umukungugu ntukomera cyane kubintu byungurura. Mubihe byinshi, kunyeganyeza akayunguruzo cyangwa gukoresha umwuka wugarijwe birahagije kugirango wirukane umukungugu wuzuye, usubize imikorere yawo. Uku gukoreshwa ntigabanya imyanda gusa ahubwo igabanya ibiciro byigihe kirekire ugereranije no kuyungurura rimwe. Kurugero, mubikoresho byangiza imyanda, filtri ya ePTFE irashobora guhanagurwa inshuro nyinshi mbere yo gukenera gusimburwa, bikagabanya cyane amafaranga yakoreshejwe.

Iyo ugereranije na HEPA muyunguruzi - kuva kera bifatwa nkibipimo bya zahabu yo kuyungurura ibice - ePTFE ifata ibyayo. Mugihe filteri ya HEPA ifata 99,97% ya 0.3-micron ibice, ubuziranenge bwa ePTFE muyunguruzi burashobora kugera kurwego rusa cyangwa rwisumbuyeho. Byongeye kandi, ePTFE isumba iyindi yo hejuru (bitewe nuburyo bwiza bwa pore yubatswe) igabanya imbaraga kuri sisitemu yabafana, bigatuma ikoresha ingufu kurusha HEPA mubikorwa byinshi.

Mugusoza, PTFE na ePTFE biragaragara nkimyenda idasanzwe kumashanyarazi. Ihuza ryabo ridasanzwe ryo kurwanya imiti, kwihanganira ubushyuhe, guhinduranya ibintu, no kongera gukoreshwa bituma bahindura byinshi kuburyo bukoreshwa buri munsi ndetse ninganda. Haba muburyo bwububiko bwa PTFE budafite inkingi yo gukusanya ivumbi riremereye cyangwa ePTFE yagutse ya membrane ya ultra-nziza yo kuyungurura, ibyo bikoresho bitanga igisubizo cyizewe, kirambye cyo kurinda umwuka mukungugu kandi wanduye. Kubashaka akayunguruzo karinganiza imikorere, kuramba, hamwe nigiciro-cyiza, PTFE na ePTFE ntagushidikanya mubihitamo byiza biboneka.